Sweet Corn and Potato Gratin Recipe: How to Make It

Ingredients

• 1 medium onion, thinly sliced
• 2 tablespoons butter
• 2 tablespoons all-purpose flour
• 2 garlic cloves, minced
• 1 teaspoon salt
• 1/2 teaspoon pepper
• 1 cup whole milk
• 2 pounds medium Yukon Gold potatoes, peeled and cut into 1/8-inch slices
• 2 cups fresh or frozen corn
• 1 can (8-1/4 ounces) cream-style corn
• 3/4 cup panko bread crumbs
• 1 tablespoon butter, melted